7x+5x+3=4x-9

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Solution for 7x+5x+3=4x-9 equation: 



7x+5x+3=4x-9

We move all terms to the left:

7x+5x+3-(4x-9)=0

We add all the numbers together, and all the variables

12x-(4x-9)+3=0

We get rid of parentheses

12x-4x+9+3=0

We add all the numbers together, and all the variables

8x+12=0

We move all terms containing x to the left, all other terms to the right

8x=-12

x=-12/8

x=-1+1/2

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